This excerpt is from a Q and A of engine oil from Japan.
Watch out for " foot out of connecting rod!"
Adverse effects of the oil is degraded?
With long without replacing the oil, additive depletion, oxidation due to heat and air, will occur due to dirt contaminants. Then, by the viscosity increases, the friction loss increases, causing a deterioration of fuel efficiency and power-down. These are the driver of the general judgment is so difficult to progress so slowly, however.
And further degradation proceeds, the oil mass to mush, oil supply line is closed, will occur abnormal wear and metal welding. Sludge that is deposited around the piston ring and ring also lead to stalemate. In the worst case, may also lead to trouble, such as foot out of the connecting rod
Watch out for " foot out of connecting rod!"
Adverse effects of the oil is degraded?
With long without replacing the oil, additive depletion, oxidation due to heat and air, will occur due to dirt contaminants. Then, by the viscosity increases, the friction loss increases, causing a deterioration of fuel efficiency and power-down. These are the driver of the general judgment is so difficult to progress so slowly, however.
And further degradation proceeds, the oil mass to mush, oil supply line is closed, will occur abnormal wear and metal welding. Sludge that is deposited around the piston ring and ring also lead to stalemate. In the worst case, may also lead to trouble, such as foot out of the connecting rod
